Bright electroluminescence from a conjugated dendrimer

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Publication Type Journal Article
School or College College of Science
Department Physics
Creator Lupton, John Mark
Other Author Ma, Dongge; Samuel, I. D. W.; Lo, Shi-Chun; Burn, P. L.
Title Bright electroluminescence from a conjugated dendrimer
Date 2002
Description Photoluminescence and electroluminescence (EL) from a conjugated dendrimer consisting of three distyrylbenzene units linked by a central nitrogen atom as core and meta-linked biphenyl units as dendrons were investigated. The conjugated dendrimer emits green light and shows photoluminescence quantum efficiency of 9%. Bright electroluminescence was realized by using bilayer devices with blurred interface, which were fabricated by sequentially spin coating a neat dendrimer and a dendrimer doped with 2-(4-biphenyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole (PBD). The devices have the following structure: indium tin oxide/3,4-polyethylenedioxythiothene- polystyrenesulfonate/dendrimer/ dendrimer:PBD/Al. By optimizing the concentration of PBD, the maximum brightness and EL quantum efficiency reach 4100 cd/m2 and 0.17%, respectively. This is the best result reported so far on organic light-emitting diodes using dendrimer as an active material with an Al cathode.
Type Text
Publisher American Institute of Physics (AIP)
Journal Title Applied Physics Letters
Volume 81
Issue 12
First Page 2285
Last Page 2287
DOI 10.1063/1.1507826
citatation_issn 36951
Subject Conjugated dendrimer
Subject LCSH Photoluminescence; Electroluminescence; Conjugated polymers -- Optical properties; Dendrimers; Dendrimers -- Optical properties
Language eng
Bibliographic Citation Ma, D., Lupton, J. M., Samuel, I. D. W., Lo, S. C., & Burn, P. L. (2002). Bright electroluminescence from a conjugated dendrimer. Applied Physics Letters, 81(12), 2285-7.
Rights Management (c)American Institute of Physics. The following article appeared in Ma, D., Lupton, J. M., Samuel, I. D. W., Lo, S. C., & Burn, P. L., Applied Physics Letters, 81(12) 2002 and may be found at http://dx.doi.org/10.1063/1.1507826
Format Medium application/pdf
Format Extent 129,442 bytes
Identifier ir-main,11899
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Reference URL https://collections.lib.utah.edu/ark:/87278/s6qr5fs6